.viewportSpacer {
  width: 100%;
  padding-top: 50%;
  position: relative;
}

.viewportWrapper {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

model-viewer {
  width: 100%;
  height: 100%;
}

.paramArea {
  position: absolute;
  padding-top: 16px;
  top: 0;
  right: 0;
}